Hello there. A little while ago I got back into Rainy Mood, but because there was no Pause button, I felt bad constantly wasting their bandwidth by closing the page and reloading it when I wanted it to momentarily stop. So I decided to break their TOS and make a stand-alone version that runs 100% offline. The site turns out to just be a short video clip that gets stretched and looped and a ~30 minute audio file that is also looped. You can download the stand-alone or the source code (attached but doesn't have the media files to reduce file size).
You'll need .NET Framework 4.5 to run it.
Download Stand-alone~Lin